What does controlling RVR mean?

— Controlling RVR means the reported values of one or more RVR reporting locations (touchdown, mid-point and stop-end) used to determine whether operating minima are or are not met. Where RVR is used, the controlling RVR is the touchdown RVR, unless otherwise specified by State criteria.

What is the minimum RVR?

The lowest authorized ILS minimums, with all required ground and airborne systems components operative, are: (a) Category I Decision Height ( DH ) 200 feet and Runway Visual Range ( RVR ) 2,400 feet (with touchdown zone and centerline lighting, RVR 1,800 feet); (b) Category II DH 100 feet and RVR 1,200 feet; (c) …

What is the difference between RVR and visibility?

The RVR is specific to the runway and its actual lighting system (i.e. can be different for different runways of the same airport at the same time), where visibility only refers to the general range an object or light can be seen in the current conditions.

How is RVR measured?

Measurement. Originally RVR was measured by a person, either by viewing the runway lights from the top of a vehicle parked on the runway threshold, or by viewing special angled runway lights from a tower at one side of the runway. The number of lights visible could then be converted to a distance to give the RVR.

How is RVR reported?

RVR is only reported at airports that have RVR sensing equipment, when the visibility is 1 statue mile or less, or when RVR for an instrument runway is 6,000 feet or less. In a METAR, RVR starts with the runway, coded with the letter “R”, followed by the runway number.

Is RVR reported in feet or meters?

How is RVR reported? RVR is reported in either feet or meters. In the United States, you can assume it is in feet. This may seem like a no brainer, but RVR is only reported at airports with an RVR system installed.

What is RVR based on?

RVR, in contrast to prevailing or runway visibility, is based on what a pilot in a moving aircraft should see looking down the runway. RVR is horizontal visual range, not slant visual range.

What is RVR for half a mile?

Approach plates commonly equate 2400 RVR with one-half mile. One-half mile is actually a little over 2600 feet. The FAA even provides a mathematically challenged table in the AIM to convert RVR to miles. So, to land do we need, 2600 feet or 2400 feet of visibility?

What is the lowest required vertical visibility for take off?

1 mile
Reasonable IFR Takeoff Minimums? For commercial operators, the FAA requires a minimum of 1 mile of visibility for single- or twin-engine airplanes, and chances are fairly good these crews are both experienced and proficient at what they are doing.